Walk In Cooler Compressor Turning On And Off

Also check all gauges to be sure temperatures subcooling superheat and pressures are all normal.

Walk in cooler compressor turning on and off. This was a service call on walk in freezer that wasn t cooling. The evaporator fans continue to run. If the compressor is cycled off and on too quickly an imbalance is created. Next check for a clean coil and clear drain line.

The condenser fans are both locked up on the outside. It keeps turning off and on in repeated short cycles. It is also a big energy user but is rarely even thought of until an issue happens. What i found is when i turn on the walk in cooler the compressor runs for approx 3 seconds and then shuts off although the blower fan continues to run.

When the temperature reaches 35 degrees 40 degree set point minus 5 degree differential the thermostat cuts the compressor and the condenser fan motor off. Walk in cooler and freezer problems like compressor failure and failure to maintain pressure can result in costly loss of products inside the cooler. The compressor is a coplanad. The walk in freezer or walk in cooler is a major part of many convenience stores cafeterias and restaurants.

The compressor provides the power behind the cooling function of the freezer. The refrigerant is r 22. If the walk in cooler is freezing up the first step is to melt ice off the evaporator and then check that the evaporation fan is running and rotating correctly. I found that the unit had a tripped head pressure controller and a condenser fan motor that w.

I checked the section pressure and it read 60psig. Heat is absorbed through the walls from door openings and from the product. Was only able to check the refridgerant on the high side due to the suction side being locked up. The fans in the walk in cooler should always be running.

The inside temperature of the freezer determines when the thermostat sends the signal to power the compressor. Hi all the compressor of a walk in cooler is acting strange. I m not sure what is going on. This imbalance will lead to a shortage of oil inside the compressor and bearing failure 1.

I got it to run fine by dropping the box temp at the thermostat to 20 to 10 it is keeping the box between 5 to 7 it ran like that working fine for 2 days now the compressor is turning on and right back off it. If anyone can give me some advice that would be much appreciated. Each time the compressor starts oil is pumped out but without sufficient run time the oil stays out in the system and does not return to lubricate the compressor.